/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "iwdg.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "st7789.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
static char buff[512];
uint32_t wk_up_triger;

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_IWDG_Init();
  MX_TIM14_Init();
  MX_TIM5_Init();
  MX_SPI1_Init();
  /* USER CODE BEGIN 2 */

  wk_up_triger = 0;
  
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  HAL_TIM_Base_Start_IT(&htim14);  // tim14 overflow interrupt
  HAL_TIM_PWM_Start(&htim14, TIM_CHANNEL_1); // tim14 ch1
  
  HAL_TIM_IC_Start_IT(&htim5, TIM_CHANNEL_2);
  
  ST7789_Init();
  
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    HAL_Delay(5000);   // dog reloead is 2000, so not delay too long
    //HAL_GPIO_TogglePin(GPIOF, GPIO_PIN_10);
    int tk = HAL_GetTick();
    
    sprintf(buff, "Hello, tick: %d. ", tk);
    Demo_Uart_Print(buff, strlen(buff));
    
    ST7789_Test();
    
    tk = HAL_GetTick();
    
    sprintf(buff, "Hello, tick: %d. ", tk);
    Demo_Uart_Print(buff, strlen(buff));
    
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 168;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

// timer timeout callback
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
  // every 500ms set PF10
  if( htim->Instance == TIM14 )
  {
    HAL_GPIO_TogglePin(GPIOF, GPIO_PIN_10);
    // dog feed
    HAL_IWDG_Refresh(&hiwdg); // reload counter
  }
  // check key press timeout
  if( htim->Instance == TIM5 )
  {
    Demo_Uart_Print("tim5 timeout!", 13);
  }
}

// timer channel capture get
void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
{
  // check up/down to show time
  if( htim->Instance == TIM5 )
  {
    HAL_TIM_IC_Stop_IT(&htim5, TIM_CHANNEL_2);
    if( wk_up_triger == 0 ){
      // first in, change to down mode
      Demo_Tim5_Reset(0);
      wk_up_triger = 1;
      uint32_t cn = __HAL_TIM_GET_COUNTER(&htim5);
      uint32_t v = HAL_TIM_ReadCapturedValue(&htim5, TIM_CHANNEL_2);
      sprintf(buff, "Key down counter: %d, cv: %d", cn, v);
      Demo_Uart_Print(buff, strlen(buff));
    }else{
      uint32_t cn = __HAL_TIM_GET_COUNTER(&htim5);
      uint32_t v = HAL_TIM_ReadCapturedValue(&htim5, TIM_CHANNEL_2);
      uint32_t tm = cn/10; //ms
      sprintf(buff, "Key counter: %d, cv: %d, time: %d ms", cn, v, tm);
      Demo_Uart_Print(buff, strlen(buff));
      // up mode
      Demo_Tim5_Reset(1);
      wk_up_triger = 0;
    }
    HAL_TIM_IC_Start_IT(&htim5, TIM_CHANNEL_2);
  }
}

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
